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Cancer can be treated easier if it is detected __________. 查看材料
A.in
B.together
C.during
D.in
【参考答案】
A
由文章第六段的内容.-1-eA得知,癌症越早发现越有利于治疗。
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下面的短文有5处空白,短文后面有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。Stars in Their EyesThe Scientific American Book of the Cosmos edited by David Levy, Macmillan, £20, ISBN 0333782933Previous generations of seientists would have killed to know what we know. For the first time in history, we have a pretty good idea of the material content of the Universe, our position within it and how the whole thing came into being.In these times of exploding knowledge there is a definite need to take stock and assemble what we know in a palatable (受欢迎的) form_________(46)The essays in The Scientific American Book of the Cosmos have been selected by David Levy,co-discoverer of Comet Shoemaker-Levy 9, which in 1994 struck Jupiter with the violenee of several full-scale nuclear wars. _________(47) This is certainly a great collection of essays, but it is not, as the book promises, a seamless (完美的,无缝隙的) synthesis of our current knowledge.Nobody can fault the range of articles Levy has included. There are essays on the planets,moons and assorted debris (碎片) in the Solar System, and on our Galaxy, the Milky Way. _________(48)The contributors, too, are stars in their own fields. Not many books can boast eha'pters written by such giants as Erwin Sehrodinger and Francis Crick. My personal favorites are a piercingly clear essay by Albert Einstein on general relativity and an article by Alan Guth and Paul Stein- hardt on the inflationary (膨胀的) Universe.So much for the book's content. But Levy has not succeeded in providing an accurate synthe-sis of our current knowledge of the eosmos, which the book jacket promises. Gathering together previously published articles inevitably leaves subject gaps, missing explanations and so on._________ (49) But there isn't one. In fact, surprisingly for a book so densely packed with infor-mation, there is no index.Collecting essays in this way is clearly a good publishing wheeze (巧妙的注意). But this approach shortchanges the public, who would be better served by an account moulded into a seamless whole._________(50) However, for the next edition, please, please can we have an index?46 查看材料
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下面的短文有l5处空白,请根据短文内容为每处空白确定1个最佳选项。School LunchResearch has shown that over half the children in Britain who take their own lunches to school do not eat __________ (51) in the middle of the day. In Britain schools have to __________(52)meals at lunchtime. Children can__________(53) to bring their own food or have lunch at the school canteen.One shocking finding of this research is that school meals are much __________ (54) than lun-ches prepared by parents. There are strict__________(55) for the preparation of school meals,which have to include one __________(56) of fruit and one of vegetables, as well as meat, a dairy item and starchy food like bread or pasta. Lunchboxes __________( 57 ) by researchers contained sweet drinks, crisps and chocolate bars. Children__________(58) twice as much sugar as they should at lunchtime.The research will__________ (59) a better understanding of why the percentage of overweight students in Britain has__________ (60) in the last decade. Unfortunately, the government cannot__________(61) parents, but it can remind them of the__________ (62) value of milk, fruit and veg-etables. Small changes in their children's diet can__________(63)their future health. Children can easily develop bad eating__________(64) at this age, and parents are the only ones who can __________ (65)it.51 查看材料
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